Pahsimeroi River

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Pahsimeroi River
Country United States
State Idaho
Counties Lemhi, Custer
Watershed 827 sq mi (2,142 km²) [1]
Discharge at at mouth
 - average 230 cu ft/s (6.5 m³/s) [1]
 - maximum 710 cu ft/s (20.1 m³/s)
 - minimum 87 cu ft/s (2.5 m³/s)
Source
 - coordinates 44°9′25″N 113°2′55″W / 44.15694, -113.04861 [2]
 - elevation 7,745 ft (2,361 m) [3]
Mouth Salmon River
 - coordinates 44°41′31″N 114°2′55″W / 44.69194, -114.04861 [2]
 - elevation 4,640 ft (1,414 m) [3]

The Pahsimeroi River is a river in Idaho in the United States. It is a tributary of the Salmon River, which in turn is tributary to the Snake River and Columbia River.

Contents

[edit] Course

From its source in Custer County, at the confluence of the West Fork and East Fork headwaters, the Pahsimeroi River flows generally northwest, through the Pahsimeroi Valley, between the Lemhi Range to the east, and the Lost River Range and to the west.

The Pahsimeroi River joins the Salmon River near Ellis, Idaho, upriver from Salmon, Idaho.

[edit] River modification

The water of the Pahsimeroi River and its tributaries is used for irrigation agriculture. All of the river's mainstem tributaries are wholly diverted and totally disconnected year round due to diversion for irrigation.[4]

[edit] See also

[edit] References

  1. ^ a b Water Resource Data, Idaho, 2005, USGS.
  2. ^ a b USGS GNIS: Pahsimeroi River, USGS, GNIS
  3. ^ a b Google Earth elevation for GNIS coordinates.
  4. ^ Salmon Subbasin Plan, Northwest Power and Conservation Council